PHYSICS QUIZTest Your Knowledge Of Physics With These QuizzesPhysics Online Quiz for Kids and Adults #1. What is the speed of Light? Approx. 200,000 Km per second Approx. 300,000 Km per second Approx. 300,000 Km per hour Approx. 200,000 Km per minute Work Harder#2. Light year is a measurement unit for: Light Time Distance Brightness Work Harder#3. Who discovered electron? Neils Bohr Schrodinger J.J.Thomson Heisenberg Work Harder Previous FinishResultsWell Done. You Are Roaring Like A LionKeep Working. Slow & Steady Wins The Race START NEW